A project is represented by the activity durations (in days, estimated at 90% likelihood of completion) and precedence requirements shown in the table. How many feeder buffers are needed if this project is managed using critical chain methodology? 
Definitions:
Diet And Smoking
Refers to the investigation and understanding of how nutrition and tobacco use individually and collectively impact health.
Cancer Deaths
The number of fatalities resulting from various forms of cancer.
Genetically Predisposed
Having a higher likelihood of developing certain conditions or traits due to inherited genetic factors.
Inherit Cancer
The genetic transmission of cancer risk from parents to offspring, influenced by mutations in certain genes.
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